* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  max-width: 600px;
  margin: 30px auto;
  padding: 0 12px;
  color: #222;

  /* fundo cinza suave */
  background: #f2f2f2;
}

h1 {
  text-align: center;
  margin-bottom: 18px;
}

/* form como “cartão” */
form {
  background: #fff;
  border: 1px solid #ddd;
  padding: 16px;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

/* espaçamento entre campos */
label {
  font-weight: 600;
  display: block;
  margin-top: 12px;
}

input,
textarea {
  width: 100%;
  padding: 10px;
  margin-top: 6px;
  border: 1px solid #ccc;
  border-radius: 8px;
  font: inherit;
  outline: none;
  background: #fafafa;
}

/* destaque quando clicar no campo */
input:focus,
textarea:focus {
  border-color: #1a73e8;
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.18);
  background: #fff;
}

button {
  width: 100%;
  margin-top: 14px;
  padding: 10px;
  border: 0;
  border-radius: 8px;
  background: #1a73e8;
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.1s ease, opacity 0.2s ease;
}

button:hover {
  opacity: 0.95;
}

button:active {
  transform: scale(0.99);
}

p {
  margin-top: 10px;
  font-size: 14px;
  color: #555;
  text-align: center;
}